Hello There !
I would try throwing in my few cents here.
The shots are not flattened at the bottom of the container, but are
flattened as soon as the melt hits the surface of the cold water.
But firstly there would be a fewdetails required to pin point the
exact cause/s of the hurdle in the project.
Are you trying to make shots with fine silver or sterling silver ?
i-e what is the purity of the metal that you are trying to make the
shots with, and what is thesize of the shotsyou require ?
Secondly, have you made any effort to guess the temperature of the
melt that you are carrying out of your shop? I think the distance to
your shotting unit and the time taken to pour is a big time
consuming factor that will level the high temperature advantage of
your melt. My guess is you are trying to make shots in fine silver
which melts @ 961 Celcius. Normally a 100 degree temperature
difference is sufficient enough temperature buffer to enable you to
pour the melt. I have a few suggestions:
Use a nice flux to cover your melt
Try and reduce the distance between your melting unit and your
Reduce the perforation size of your crucibles from 2.5mm to maybe
1.5mm. Also counter-sinking the holeson the inside of the crucible
The water that you are adding the molten metal has to has a swirling
action ( could be clockwise or anti clockwise ) to enable the molten
metal take a spherical shape.
A height of 6 feet is totally un-necessary to do this job. You could
try keeping the perforated crucible at a height of say a few inches
( 6 or 8 ) above the water surface.
You could also try to melt the silver over the shotting unit in the
perforated crucible ( preferably graphite ) so that as soon as the
silver melts it falls into the swirling water below. Of course you
have to be extra cautious and careful to avoid any contact of the
splashing water with the crucible.
Also if you are trying to make shots of fine silver it would yield
more flat shots than a Silver alloy with a lower purity.
I hope this helps. And needless to say you are most welcome to take
suggestions and advise about the safety and other precautions
necessary to carry out the actual process from more learned souls on